diff --git a/pkgs/by-name/fa/fastapi-dls/package.nix b/pkgs/by-name/fa/fastapi-dls/package.nix
index 8b307f06c391a2..7b586a471f0987 100644
--- a/pkgs/by-name/fa/fastapi-dls/package.nix
+++ b/pkgs/by-name/fa/fastapi-dls/package.nix
@@ -37,7 +37,7 @@ python3.pkgs.buildPythonApplication {
     domain = "git.collinwebdesigns.de";
     owner = "oscar.krause";
     repo = "fastapi-dls";
-    rev = "refs/tags/${version}";
+    tag = version;
     hash = "sha256-H4mtmJ4iQXPZFWQPm12aH/kdg9TAMgHkvkbaHfxfS3I=";
   };